# Elmina B. Sewall Foundation

Elmina B. Sewall Foundation is an Endowment / Foundation based in Freeport, United States.

## Overview

- **Organization type:** Endowment / Foundation
- **Headquarters:** Freeport, United States
- **Region:** North America
- **Address:** 15 Main St Ste 230, Freeport, ME 04032, United States
- **Founded:** 1982
- **Assets under management:** $160M (Altss estimate)
- **Website:** sewallfoundation.org
- **LinkedIn:** https://www.linkedin.com/company/elmina-b-sewall-foundation

## Regulatory record

- **Reports private funds:** No

## About

The Elmina B. Sewall Foundation was created in 1982 to steward the fortune of Elmina Brewster Sewall, whose family wealth stemmed from timberlands and the Boston & Maine Railroad. Based in Freeport, it concentrates its capital and attention entirely on the state of Maine. The foundation channels resources into two distinct but aligned tracks: a grantmaking program focused on animal welfare, food systems, and nature-based education, and an impact-investment portfolio managed by Investment Partner Thomas M. Mitchell. The investment program spans fund commitments, direct co-investments, and special situations. Asset classes include venture capital, buyouts, distressed debt, timber, and natural resources, with stage coverage ranging from seed to late-stage expansion. The foundation participates in mission-aligned vehicles through its membership in the Mission Investors Exchange network and runs the EBSF Loan Fund for place-based lending in Maine. Grantmaking partners and grantees include the Maine Philanthropy Center and the Maine Association of Nonprofits. Executive Director Gabriela Alcalde joined the foundation and shaped its equity-first, trust-based approach to philanthropy, which governs both grantee relationships and internal operations. Alcalde also serves on the board of Grantmakers for Effective Organizations and as Co-Chair of the Equity Subcommittee of the Maine Climate Council. The foundation maintains active memberships in the Council on Foundations, PEAK Grantmaking, and the Environmental Grantmakers Association. The foundation's defining trait is geographic concentration married to structural diversification. A private foundation that operates a direct lending vehicle while serving as a limited partner in institutional funds is a rare configuration — particularly when all of it maps to a single state. That architecture lets the Sewall Foundation behave like a community development financial institution, an impact fund-of-funds, and a traditional grantmaker all at once, without diluting its Maine-specific mandate.

## Sectors

- Natural Resources
- Timber
- Food & Agriculture
- Education

## People

- Gabriela Alcalde — Executive Director
- Thomas M. Mitchell — Investment Partner
- Jono Anzalone — Board Chair

## Questions

### Who runs investment decisions at the Elmina B. Sewall Foundation?

Investment Partner Thomas M. Mitchell oversees the foundation's portfolio of fund commitments, direct co-investments, and special situation investments. Executive Director Gabriela Alcalde leads the organization's overall strategy, ensuring that investment activity aligns with the foundation's place-based mission for Maine. The board, chaired by Jono Anzalone, provides governance and fiduciary oversight.

### How does the Sewall Foundation's investment portfolio relate to its grantmaking?

The foundation runs a dual-mandate strategy. The grantmaking side distributes funds to Maine nonprofits in animal welfare, food systems, and nature-based education. The impact-investing side deploys capital into funds, direct deals, and a loan fund that advance the same mission. The EBSF Loan Fund is the most direct bridge, providing place-based lending within Maine.

### What investment stages does the Sewall Foundation target?

Stage coverage is broad and spans seed, start-up, early-stage, expansion and late-stage, as well as buyouts and distressed debt. The foundation also participates in special situations and co-investments. This range reflects a portfolio built around mission alignment rather than a narrow stage mandate.

### What is the Sewall Foundation's known posture on co-investments alongside external GPs?

The foundation engages in co-investments as part of its broader impact-investing strategy, which also includes fund-of-funds commitments and direct special situation deals. Its membership in Mission Investors Exchange signals active participation in the impact-investing community where co-investment opportunities frequently arise.

### Does the Sewall Foundation invest outside the United States?

All evidence points to a concentrated Maine and United States footprint. The foundation's mission is explicitly place-based, focused on fostering a healthier and more equitable Maine. There is no public indication of international portfolio assets or grantmaking outside the US.

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Last updated: 2026-06-03T20:00:00.000Z

Canonical page: https://altss.com/profile/elmina-b-sewall-foundation

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